I've used this vise for a while now and can say that I am pleased with it. For the price the quality is great, the vise jaws are precisely machined, as well as the milled keyways with keys underneath the vise which perfectly fits my milling table, making it super easy to perfectly align the vise to the table, great feature!
The base of the vise has small walls that contains flood coolant which I run on my mill, these walls was not quite high enough so i modified it a little to make them higher which works great. Slightly higher walls on the base would be amazing. However it might not be made to run flood coolant but only to collect small amounts of oil and chips, this it works great for.
the only drawback I've noticed is that chips from drilling tends to collect inside the vise and jam up either the screw or ways, this can make it difficult to turn the handle and move the vise jaw. I use a small brush to clean these chips away.
Overall very pleased with the quality of this vise and for the price its amazing. Recommended.